Segment Information - Capital expenditures and depreciation and amortization expense by segment (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Segment Information
Capital expenditures	$ 46.4	$ 27.5
Depreciation and amortization expense	20.7	19.0
Operating segments \| Data Centers
Segment Information
Capital expenditures	30.9	7.1
Depreciation and amortization expense	5.4	5.7
Operating segments \| Commercial HVAC
Segment Information
Capital expenditures	6.4	12.8
Depreciation and amortization expense	8.0	5.5
Operating segments \| Performance Technologies
Segment Information
Capital expenditures	8.2	7.3
Depreciation and amortization expense	6.9	7.5
Corporate and eliminations
Segment Information
Capital expenditures	0.9	0.3
Depreciation and amortization expense	$ 0.4	$ 0.3

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References + Details